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Finding the Fourth Proportional to 378,047.40, 567,071.10 and 252,076.20

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Solution

The fourth proportional to 378,047.40, 567,071.10 and 252,076.20 is: 378,114.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,047.40 : 567,071.10 = 252,076.20 : x
  2. Step 2: Convert to fraction form
    378,047.40/567,071.10 = 252,076.20/x
  3. Step 3: Cross multiply
    378,047.40x = 567,071.10 × 252,076.20
  4. Step 4: Simplify right side
    378,047.40x = 142,945,128,017.82
  5. Step 5: Solve for x
    x = 142,945,128,017.82/378,047.40
  6. Step 6: Final answer
    x = 378,114.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.